Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Colorado to New York from $121

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to New York departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Colorado to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:59 pm - 7:01 pm
DEN
-
ISP
17h 02m
1 stop
Frontier Logo
7:46 pm - 2:45 pm
ISP
-
DEN
20h 59m
1 stop
$242Frontier
Thu, Aug 6 - Wed, Aug 12
Frontier Logo
10:36 am - 9:53 am
DEN
-
ISP
21h 17m
1 stop
Frontier Logo
7:46 pm - 2:45 pm
ISP
-
DEN
20h 59m
1 stop
$243Frontier
Thu, Aug 6 - Wed, Aug 12
Frontier Logo
11:52 pm - 9:53 am
DEN
-
ISP
8h 01m
1 stop
Frontier Logo
10:57 am - 11:00 pm
ISP
-
DEN
14h 03m
1 stop
$305Frontier
Tue, Aug 4 - Fri, Aug 14
Frontier Logo
11:59 pm - 9:33 am
DEN
-
ISP
7h 34m
1 stop
Frontier Logo
4:13 pm - 11:04 pm
ISP
-
DEN
8h 51m
1 stop
$306Frontier
Sun, Sep 20 - Sat, Sep 26
Frontier Logo
11:52 pm - 9:53 am
DEN
-
ISP
8h 01m
1 stop
Frontier Logo
10:43 am - 11:00 pm
ISP
-
DEN
14h 17m
1 stop
$332Frontier
Tue, Aug 4 - Sat, Aug 8
Frontier Logo
6:00 am - 7:01 pm
DEN
-
ISP
11h 01m
1 stop
Frontier Logo
10:57 am - 11:00 pm
ISP
-
DEN
14h 03m
1 stop
$335Frontier
Sat, Aug 8 - Fri, Aug 14
Frontier Logo
11:52 pm - 9:53 am
DEN
-
ISP
8h 01m
1 stop
Frontier Logo
10:57 am - 11:00 pm
ISP
-
DEN
14h 03m
1 stop
$336Frontier
Tue, Jul 14 - Wed, Jul 22
Frontier Logo
11:52 pm - 9:53 am
DEN
-
ISP
8h 01m
1 stop
Frontier Logo
10:57 am - 11:00 pm
ISP
-
DEN
14h 03m
1 stop
$338Frontier
Sun, Aug 2 - Fri, Aug 14
Southwest Logo
1:15 pm - 10:05 pm
COS
-
ISP
6h 50m
2 stops
Southwest Logo
5:30 am - 5:55 pm
ISP
-
COS
14h 25m
2 stops
$579Southwest
Mon, Aug 10 - Sat, Aug 15
Southwest Logo
9:35 am - 11:40 pm
COS
-
ISP
12h 05m
2 stops
Southwest Logo
2:55 pm - 9:50 pm
ISP
-
COS
8h 55m
2 stops
$597Southwest
Fri, Jul 10 - Tue, Jul 14

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Frontier flights from Colorado to Islip, New York

Our best Frontier deals on Colorado to Islip, New York flight tickets
Frontier
Aug 6
DEN11:59 pmDenver Intl
17h 02m
1 stop
ISP7:01 pmIslip Long Island
Aug 12
ISP7:46 pmIslip Long Island
20h 59m
1 stop
DEN2:45 pmDenver Intl
$242
Frontier
Aug 6
DEN10:36 amDenver Intl
21h 17m
1 stop
ISP9:53 amIslip Long Island
Aug 12
ISP7:46 pmIslip Long Island
20h 59m
1 stop
DEN2:45 pmDenver Intl
$243
Frontier
Aug 4
DEN11:52 pmDenver Intl
8h 01m
1 stop
ISP9:53 amIslip Long Island
Aug 14
ISP10:57 amIslip Long Island
14h 03m
1 stop
DEN11:00 pmDenver Intl
$305

Southwest flights from Colorado to Islip, New York

Our best Southwest deals on Colorado to Islip, New York flight tickets
Southwest
Oct 18
DEN12:30 amDenver Intl
7h 10m
1 stop
ISP9:40 amIslip Long Island
Oct 24
ISP6:00 amIslip Long Island
9h 50m
2 stops
DEN1:50 pmDenver Intl
$377
Southwest
Oct 19
DEN1:25 pmDenver Intl
8h 10m
2 stops
ISP11:35 pmIslip Long Island
Oct 24
ISP6:00 amIslip Long Island
9h 50m
2 stops
DEN1:50 pmDenver Intl
$382
Southwest
Aug 6
DEN10:20 amDenver Intl
9h 10m
1 stop
ISP9:30 pmIslip Long Island
Aug 12
ISP12:55 pmIslip Long Island
8h 50m
2 stops
DEN7:45 pmDenver Intl
$420

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Islip, New York that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 25, 2026.
Use the filters below to find and compare flights from Colorado to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 8/6

11:59 pm-7:01 pm

1 stop17h 02m

Islip Long Island

Wed 8/12

7:46 pm-2:45 pm

1 stop20h 59m

$242

DenverIslip

DEN - ISP

DENISP

Denver Intl

Thu 8/6

10:36 am-9:53 am

1 stop21h 17m

Islip Long Island

Wed 8/12

7:46 pm-2:45 pm

1 stop20h 59m

$243

DenverIslip

DEN - ISP

DENISP

Denver Intl

Tue 8/4

11:52 pm-9:53 am

1 stop8h 01m

Islip Long Island

Fri 8/14

10:57 am-11:00 pm

1 stop14h 03m

$305
Quickest round-trip

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sun 9/20

11:59 pm-9:33 am

1 stop7h 34m

Islip Long Island

Sat 9/26

4:13 pm-11:04 pm

1 stop8h 51m

$306

DenverIslip

DEN - ISP

DENISP

Denver Intl

Tue 8/4

11:52 pm-9:53 am

1 stop8h 01m

Islip Long Island

Sat 8/8

10:43 am-11:00 pm

1 stop14h 17m

$332

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sat 8/8

6:00 am-7:01 pm

1 stop11h 01m

Islip Long Island

Fri 8/14

10:57 am-11:00 pm

1 stop14h 03m

$335

DenverIslip

DEN - ISP

DENISP

Denver Intl

Tue 7/14

11:52 pm-9:53 am

1 stop8h 01m

Islip Long Island

Wed 7/22

10:57 am-11:00 pm

1 stop14h 03m

$336

DenverIslip

DEN - ISP

DENISP

Denver Intl

Sun 8/2

11:52 pm-9:53 am

1 stop8h 01m

Islip Long Island

Fri 8/14

10:57 am-11:00 pm

1 stop14h 03m

$338

Colorado SpringsIslip

COS - ISP

COSISP

Colorado Springs

Mon 8/10

1:15 pm-10:05 pm

2 stops6h 50m

Islip Long Island

Sat 8/15

5:30 am-5:55 pm

2 stops14h 25m

$579

Colorado SpringsIslip

COS - ISP

COSISP

Colorado Springs

Fri 7/10

9:35 am-11:40 pm

2 stops12h 05m

Islip Long Island

Tue 7/14

2:55 pm-9:50 pm

2 stops8h 55m

$597

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to New York from

How to get the cheapest flight ticket from Colorado to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Colorado to Islip, New York flights?

You could potentially save up to 61% on your flight if you consider stops on a Colorado to Islip, New York flight.

Cheap Colorado to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Islip, New York

Fastest flight time

6h 50m

Direct flights

None
The fastest flight from Colorado to Islip, New York takes 6h 50m
There are no direct flights from Colorado to Islip, New York. There are no popular flight routes from Colorado to Islip, New York.
Search flight deals

Frequently asked questions about flying from Colorado to Islip, New York

  • When did momondo last update prices for flights from Colorado to Islip Long Island Airport?

    Prices for flights from Colorado to Islip Long Island Airport are updated daily.

  • How many operators does momondo search for flights from Colorado to Islip Long Island Airport?

  • How old do you have to be to fly from Colorado to Islip Long Island Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Islip Long Island Airport.

  • What documentation or ID do you need to fly to Islip Long Island Airport?

    The necessary travel and health documents for your Islip Long Island Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Islip, New York

Compare and see reviews for airlines that fly from Colorado to Islip, New York with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $375Free CancellationRating
7.9
4,243 reviews
Search Southwest flights

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Southampton
Sag Harbor
Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Islip?

It is quick and easy to find Colorado to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

Can I find flights from Colorado to Islip with flexible booking policies on momondo?

momondo does allow users to show only those flights to Islip from Colorado which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Colorado to Islip?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from Colorado.

I’m not ready to book a flight from Colorado to Islip right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Colorado to Islip now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Islip and let you know when they change.

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 7/25
Sat 8/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States